Boiler-flue roller.



No. 737,302 PATEN'TE'D AUG. 25, 1903.

J. ULRICH.

' BOILER FLUE ROLLER.

APELIOATION FILED APR, 14, 1902.

H0 MODEL.

INVENTOR. qEvI'n Z0210 WJTNESSES:

A TTORNEYT UNITED STATES Patented August 25, 1903.:

PATENT OFFICE.

JOHN ULRICH, OF COLUMBUS, OHIO.

BOlLER-FLUE ROLLER.

SPECIFICATION forming part of Letters Patent No. 737,302 dated August 25, 1903.

Application filed April 14, 1902.

and reliable construction, to provide simple and inexpensive means for producing a reliable connection of the parts of said device, and to produce other improvements the details of which will be more fully pointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawings, in which Figure 1 is a side elevation of my improved flue-roller. Fig. 2 is a central longitudinal section of the same on line mm of Fig. 1. Fig. 3 is a transverse section on line y y of Fig. 1. Fig. 4 is a rear end view with the locking-plate removed. Fig. 5 is a face view of said locking-plate, and Fig. 6 is an inner end view of a follower which I employin the manner hereinafter described.

Similar numerals refer to similar parts throughout the several views.

1 represents the roller-containing ease or barrel, which, as indicated in the drawings, is formed of a single piece of metal and which is formed with equidistant radially-arranged slotted openings 2, which lead from points near the inner end of the barrel through the outer end thereof. The arms 2 of the barrel, which are formed by the production of the slotted openings 2, have their outer end portions flanged outward, as indicated at 3 in Fig. 2. At the inner ends of the slotted openings 2 are formed radially-arranged bearing-recesses 4. As indicated in the drawings, the body of the barrel 1 is adapted, to slip through the central opening in a head or ring 5, the latter being formed with an internal shoulder 6, against which the outwardly-projecting portions 3 of the barrel-arms 2 are adapted to hear. The ring 5 has formed on Serial No. 102,846. (No model.)

its inner or rear side an inwardly-extending rim-flange 5, said flange being cutaway on opposite sides, as indicated at 5". The outer or forward side of the ring 5 is recessed radially, resulting in the formation of outwardly-projecting lugs 7, the inner faces of 4 which are undercut or recessed, asindicated at 8 in'Fig. 1 and by dotted lines in Fig. 4..

9 represents a follower-body, which consists of a central tubular portion formed throughout its length with radially-arranged flanges or arms 10, the outer end portions of these arms or flanges being formed with outward extensions or shoulders 11, which when saidfollower-body and its arms are inserted.

within the central and slotted portion of the barrel 1 engage the outer side of the internal ring-shoulder 6 between the barrel-arms. In this connection it will be observed that the radial flanges or arms 10 of the follower 9 are designed to fill the spaces formed by the slots 2 between the outer ends of said barrel-arms 2. As indicated more clearly in Figs. 2 and 6 of the drawings, the inner end of the follower has its flanged portions 10 formed with elongated bearing-recesses 12, corresponding with the recesses 4 at the inner ends of the slotted openings 2.

13 represents rollers, which are arranged longitudinally within the slotted openings of the barrel 1, the pivots or journal projections 13* of said rollers bearing, respectively, in the bearing-recesses 4 and 12 of the barrel and follower.

14. represents a locking-plate having a central opening and provided at intervals with short laterally projecting arms 14.. This locking-plate, as indicated more clearly'in Figs. 1 and 2 of the drawings, .is designed ,to bear upon the outer end of the barrel with its projecting arms 14. extending over onto the ring 5. The locking-plate when in this position is adapted to be turned until its arms 14. engage the under side recesses '8 of the ring projections 7. In this position the plate 14 serves to prevent the'working out or withdrawal of the follower 9 or barrel 1, and said locking-plate is prevented from rotation by the insertion of a pin 15 through an opening 16 in one of the ring-lugs 7, said pin in thus being inserted engaging a peripheral or edge notch or recess 17 of the plate 14: and thence passing inward through an opening in the ring.

In utilizing the device herein described the body of the barrel 1 is inserted in the boilertube and the rolls pressed outward to extend said tube into desirable connection with the sheets by the usual process, which consists in inserting a tapering pin through the central opening of the plate 14, thence through the follower 9 and barrel 1.

From the construction which I have shown and described it will be seen that a simple, reliable, and eifective construction of boilertube roller is provided wherein the use of screws, rivets, or bolts for attaching the various parts is obviated. It will also be observed that the roller-containing barrel is formed of one piece of material and that the means for locking said barrel and the follower in connection with the ring are simple and effective.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a boiler-flue roller, the combination with the barrel 1 formed of one piece of material, said barrel having formed longitudinally therein openings 2, a tubular follower having radially-arranged arms adapted to enter said barrel-openings 2 and rollers movably journaled within said barrel-openings,

of a ring adapted to surround the outer por-' tion of the barrel, a locking-plate adapted to engage said ring and hold the follower against withdrawal, and means for detachably connecting said ring and barrel, substantially as specified.

2. In a boiler-flue roller, the combination with the barrel 1 formed of one piece of material, said barrel having formed longitudinally therein openings 2, a tubular follower having radially-arranged arms adapted to enter said barrel-openings 2 and rollers movably journaled within said barrel-openings, of a ring adapted to surround the outer portion of the barrel, said ring having an internal shoulder engaging an external shoulder of said barrel and outwardly and inwardly projecting lugs 7and a locking-plate 14 having a central opening and provided with projecting arms 143, said arms adapted to engage the inturned ends of said ring projections 7 and a pin adapted to detachably connect said ring andlocking-plate, substantially as specified.

JOHN ULRICH. In presence of-- O. O. SHEPHERD, P. S. KARSHNER. 

